The research also raises the question ________ children from low-income, less ed

题干

The research also raises the question ________ children from low-income, less educated families need earlier aid.

A．what

B．that

C．when

D．whether

上一题下一题 0.64难度单项选择更新时间:2014-04-10 03:16:51

小学学科试题库

初中学科试题库

高中学科试题库